He doesn't flash ability. Never has, at any weight or any position.
Admittedly, the guy makes me sick but I don't understand the flurry of apologists. He had an undeserved reputation coming out of college and has somehow maintained it. Hard trying player but once the speed and athletic ability level rose sharply, Roth doesn't have enough to stand out at this level.
Another offseason isn't going to change anything. Regardless of weight, he's going to be a plodding square built Rock 'Em Sock 'Em Robot type, occasionally bumping into someone to cause a tackle. On the overwhelming majority of plays he simply wrestles with the blocker, then moves toward the pile like he's discovered something. It's the most predictable aspect of Dolphin football right now.
I guarantee he's on the upgrade list. It might be true it's not high enough to put him in jeopardy for 2009. But I can hope. :D